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（上海建筑設(shè)計研究院有限公司， 上海 200041）
［摘要］以某漂流游樂項目山洞盒85-5m地上超長混凝土墻為例，分析了后澆帶、補(bǔ)償收縮混凝土、跳倉法、誘導(dǎo)縫、摻聚丙烯纖維和多種措施共用等幾種收縮應(yīng)力控制方法，對其收縮應(yīng)力和溫度應(yīng)力、考慮樁基剛度影響的墻預(yù)應(yīng)力進(jìn)行了計算。介紹了本項目收縮應(yīng)力、溫度應(yīng)力的控制方法和抵抗措施，并對類似項目提出設(shè)計建議。
［關(guān)鍵詞］超長混凝土墻； 收縮溫度應(yīng)力； 后澆帶； 補(bǔ)償收縮混凝土； 跳倉法； 誘導(dǎo)縫
中圖分類號：TU375文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)02-0019-04
Shrinkage and temperature stress control of overground super-long concrete wall
Zhang Shichang, Xu Xiaoming
(Shanghai Institute of Architectural Design & Research Co., Ltd., Shanghai 200041, China)
Abstract:The Showbox of a rafting ride entertainment with a 85-5m-long overground super-long concrete wall was taken as an example to analyze the shrinkage stress control methods including post-cast strip, shrinkage-compensating concrete, alternative bay construction method, control joint, polypropylene fiber and a combination of the measures above. The shrinkage stress and temperature stress of super-long wall and prestress on the wall under the effect of consideration of the stiffness of piled foundation were calculated. The resisting measures and control methods of shrinkage stress and temperature stress in this project were introduced and design suggestions on similar projects were proposed.
Keywords:super-long concrete wall; shrinkage temperature stress; post-casting strip; shrinkage-compensating concrete; alternative bay construction method; control joint
作者簡介：張士昌，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email:zhangsc@siadr.com.cn。
